JP2561446B2 - Combine harvesting pretreatment device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention supports a cutting pretreatment mechanism for cutting grain culms so as to be laterally movable with respect to a traveling machine body equipped with a threshing device. A feed / conveying device for feeding the grain culms cut by the pre-reaping mechanism to a rear threshing device, and the supply / conveying device is provided with the starting end side being up and down and left and right with the rear conveying end side as a swing fulcrum. The present invention relates to a combine harvesting pretreatment device configured to be movable in any direction. In this type of combine harvesting pretreatment device, when the harvesting pretreatment mechanism is laterally moved laterally, the rear end side of the main support body that supports the harvesting pretreatment mechanism is used as a fulcrum. By swinging the front end side to the left and right, the entire pre-mowing treatment mechanism is configured to move laterally from side to side.
There is also a supply / conveyance device configured to swing left and right around a rear fulcrum (see, for example, Japanese Patent Publication No. 53-27171). However, the above-mentioned conventional structure has the following problems. In other words, the main support swings up and down to adjust the cutting height, and it is not realistic to swing the main support itself left and right, and the structure becomes complicated. In addition, regardless of the left-right swing of the main support, after moving the pre-mowing treatment mechanism to the left and right, it moves left and right while maintaining the desired forward-looking posture without changing the orientation of the pre-mowing treatment mechanism. How to do so, how to prevent conveyance failure due to positional change between the cutting pretreatment mechanism and the feeding and conveying device that occurs with the lateral movement of the cutting pretreatment mechanism, etc. No solution was provided for the insistence on demand. The present invention was devised with these points in mind, and laterally moves the mowing pretreatment mechanism laterally, and laterally moves the supply transporting device together with the mowing pretreatment mechanism, so that the cut grain culms can be smoothly moved. The present invention provides one rational and effective solution to carry the material backward and supply it to the threshing device. As a result, for example, when the uncut grain culm is located on the left side and is rotated in the counterclockwise direction, the left side portion of the pre-reaping processing mechanism is projected to the left outer side of the traveling machine body to cut the uncut grain culm. By increasing the distance between the left crawler traveling device and the left crawler traveling device, the mud pushed out by the left crawler traveling device pushes down the uncut grain culm, or the mud adheres to the uncut grain culm, and It is possible to prevent the cutting blade from being damaged in the next step and damaging the cutting blade.When the uncut grain culms are located on both the left and right sides, the pre-cutting mechanism is installed on the left and right center side of the traveling machine body. By positioning the weeding tool in front of the crawler traveling device on both the left and right sides, it is possible to prevent pushing down uncut grass culms and perform effective swivel cutting work and middle split work. It realizes the cutting pretreatment apparatus Unishi were combined. [0004] In the technical means of the present invention taken to achieve the above object, a cutting pretreatment mechanism for cutting grain culms is mounted on a traveling machine body equipped with a threshing device. While supporting laterally movable to the main support body, a supply and conveyance device for feeding the grain culms cut by the reaping pretreatment mechanism to the rear side threshing device is provided, and the supply and conveyance device is provided at the rear side. The starting end side is configured to be vertically and horizontally movable with the end point of conveyance as a swing fulcrum, and the cutting pretreatment mechanism and the feeding and conveying device are arranged so that the feeding and conveying device is allowed to move left and right and left and right by changing the front and rear positions thereof. An end-side transfer path of the scraping transfer device and a start-side transfer path of the supply transfer device, which are interlockingly connected to each other via a connection mechanism that enables vertical movement and are provided on the stocker side of the pre-mowing treatment mechanism. And in the transport direction In order to maintain the overlapping state in the front and rear regardless of the lateral movement of the pre-mowing treatment mechanism, the feeding direction end side of the feeding grain culm guide body forming the sweeping transport path of the sweeping transport device and the supply That is, the mutual relational position with the position of the conveyance start end side of the conveyance device is set. The effect of taking the above technical means is as follows. a. After the lateral movement, the mowing posture of the mowing pretreatment mechanism with respect to the traveling body can be laterally moved to the traveling body side while maintaining the desired forward posture in the lateral direction of the body. Therefore, even if the cutting form is changed, such as switching from swiveling to middle cutting, there is no inconvenience that the direction of the cutting blade changes. b. The cutting pretreatment mechanism and the feeding and conveying device are connected to the main support by connecting the feeding and conveying device through a connecting mechanism that allows the start and end positions of the feeding and conveying device to change in the front-rear direction and can move in the left-right and up-down directions. Since the lateral movement of the pre-mowing treatment mechanism in the left-right direction and the lateral movement of the feed conveying device on the starting end side around the rear fulcrum axis are accurately linked, the movement of the feeding conveyer device relative to the pre-mowing treatment mechanism is adjusted. , It becomes possible to automatically interlock according to the movement amount of the pre-mowing treatment mechanism. The feed and transfer device is moved in the left-right direction in conjunction with the horizontal movement of the pre-mowing treatment mechanism in the left-right direction, and the vertical movement can also be accurately performed.
The handling depth control by the supply and transport device, which is essential for threshing work, can be appropriately handled. c. In order to maintain a state in which the trailing-side transport path of the scraping transport device and the leading-end transport path of the supply transport device overlap in the front and rear in the transport direction, regardless of the lateral movement of the reaping pretreatment mechanism, the scraping is performed. Since the mutual relation position between the end side in the conveying direction of the conveying grain culm guide body constituting the scraping conveying path of the conveying device and the position of the conveying starting end side of the supply conveying device is set, the conveying grain of the scraping conveying device is set. While the baton touch section between the culm guide body and the transport start end of the feed transport device is always maintained in the wrapped relational position, the start end side of the feed transport device is moved backward in conjunction with the lateral movement of the pre-mowing treatment mechanism in the left-right direction. It can be moved laterally about the fulcrum axis.
Therefore, the starting end side of the supply transport device is kept at a suitable relation position with respect to the transport path of the scraping transport device of the pre-mowing treatment mechanism, and the left and right lateral movement range of the pre-mowing treatment mechanism is enlarged to move laterally. Thus, the grain culm can be delivered and received from the pre-mowing treatment mechanism to the feeding and conveying device in good condition, and the grain culm can be smoothly conveyed from the pre-mowing treatment mechanism to the feeding and conveying device. Further, also in the mowing and threshing work in which the main support is moved up and down and the cutting height is changed, it is possible to maintain the above-mentioned relational position and perform the delivery and transfer of the good grain stems. The effects of taking the above technical means are as follows. In other words, with a simple structure, the cutting pretreatment mechanism can be moved laterally and the feeding and conveying device can be interlocked with it, and the posture of the cutting pretreatment mechanism after lateral movement can be maintained in the desired forward posture. In addition, when the cutting pretreatment mechanism is laterally moved to the left or right, the state in which the trailing-side transport route of the scraping transport device and the leading-end transport route of the supply transport device overlap in the front and rear of the transport direction In order to maintain it, the baton touch part between the transporting grain culm guide body of the scraping transporting device and the transporting start end part of the supply transporting device is always kept in the wrapped relational position. By increasing the effectiveness of the stalks, the cutting pretreatment mechanism can successfully transfer the stems to the feeding and conveying device. As a result, it is possible to smoothly switch from the swiveling work to the middle cutting work, or from the middle cutting work to the swiveling work or the edge cutting work, and it is possible to effectively perform each work mode. Became possible. EXAMPLE As shown in FIG. 1, the combine is a weeding tool 1
Left and right packers as a raising device 2 for raising the planted culms sown by the reaping device, a reaping device 3 for reaping the culmed culms after the raising, and a scraping and conveying device 4 for concentrating the cut culms in the center of the cutting width. 4A and a conveyor belt 4B with left and right protrusions, a conveyor grain culm guide body 41, and a cutting pretreatment device including a supply conveyor device 6 that conveys the focused grain culm toward the rear threshing device 5 including the threshing feed chain 39, and the like. The driver's seat 7 is provided on the lateral side of the carrier device 6. The above-mentioned weeding tool 1, raising device 2, mowing device 3, scraping conveying device 4, etc. are collectively referred to as a mowing pretreatment mechanism 17, and this mowing pretreatment mechanism 17 is slid over the traveling machine body 9. The dynamic structure will be described. As shown in FIGS. 1 to 3, a vertically oriented frame 10 is erected at the front end of the traveling machine body 9, and a horizontally oriented transmission case 11 is pivotally supported on the upper end of the vertically oriented frame 10 so as to be rotatable around its horizontal axis. Has been done. The main support body 12 in the front-back direction of the machine body is mounted on the outer peripheral surface of the lateral transmission case 11, and the transmission shaft 13 of the lateral transmission case 11 and the transmission shaft 14 of the main support body 12 are connected by a bevel gear mechanism 15. Sideways transmission case 11
The end input pulley 8 of the transmission shaft 13 receives power from an engine (not shown) and transmits the power to the main support transmission shaft 14. A support case 1 is attached to the tip of the main support 12.
6 is provided and a cutting pretreatment mechanism 17 is attached to the support case 16. The mounting structure of the cutting pretreatment mechanism 17 on the tip support case 16 will be described. As shown in FIGS. 2 and 3, a slide shaft 18 having a posture along the lateral width direction of the machine is bearing-supported at a mounting position of the main support 12 of the tip support case 16 so as to be slidable in the X-axis direction of the shaft. At the same time, a passive bevel gear 19 and a drive bevel gear 20 are fixed to the tip of the main support transmission shaft 14 at the intermediate portion formed in a hexagonal shape to form a transmission structure to the sliding shaft 18. The passive bevel gear 19 is externally fitted to the hexagonal intermediate portion of the sliding shaft 18 so as to be integrally rotatable, and is also rotatably supported by the tip support case 16 via a bearing 21 so as to be rotatable. It is configured to allow lateral sliding. Bevel gear transmission mechanisms 22 and 22 for supplying power to the raising devices 2 and 2 are provided at the left and right end portions of the sliding shaft 18 that project to the left and right from the tip support case 16. A pipe type first sliding frame 23 is provided in front of the sliding shaft 18.
Is horizontally pivotally supported by the tip support case 16 via the bushes 24, 24, and left and right support frames 25, 25 having left and right weeding tool support rods fixed to the left and right ends protruding from the tip support case 16. Are connected and fixed. Further, a second sliding frame 26 is provided over the left and right support frames 25, 25 on the front side of the first sliding frame 23, and extends further forward from the front end of the support case 16. A holder 27 having a substantially U-shaped cross section is inserted from the front opening side and is loosely fitted and supported, so that the holder 27 can slide laterally relative to the holder 27. Next, the lateral sliding drive device of the pre-mowing treatment mechanism 17 will be described. As shown in FIGS. 1 to 4, a screw shaft 28 having a large advancing angle is inserted into the tip support case 16 in a lateral direction, and a female screw member 29 that engages with the screw shaft 28 on the left side surface of the tip support case 16. Is provided. The left end of the screw shaft 28 is the left support frame 2
5, a driven bevel gear 30 attached to the tip protruding from the left support frame 25 is mounted. on the other hand,
A drive motor 32 is installed above the driven bevel gear 30 and laterally above the left merging / conveying device 4B, and a downward output shaft of the drive motor 32 and the screw shaft 2 are provided.
And 8 are connected to each other via a transmission shaft serving as a downward transmission mechanism 33. In the figure, 34 is a drive bevel gear that is attached to the lower end of the transmission mechanism 33 and that meshes with the driven bevel gear 30, and 31 is a coupling that connects the downward output shaft of the drive motor 32 and the transmission mechanism 33. On the other hand, as shown in FIGS. 1 to 4, the bevel gear transmission mechanism 22 provided at both ends of the sliding shaft 18 is covered with a first bevel gear case 35, and the first bevel gear case 35 is provided.
Is used as a support stand to erect a transmission case 59, and the second bevel gear case 3 is provided in the middle of the raised transmission case 59.
7 is provided to branch the power from the second bevel gear case 37 to form a branch structure for supplying power to the transport belt with protrusion 4B and the packer 4A. Then, the mounting base is extended from the second bevel gear case 37, and the drive motor 32 is mounted on the mounting base. Next, the handling depth adjusting device will be described in detail.
As shown in FIG. 5, the supply / conveyance device 6 is composed of a tip-end locking / conveyance device 6A and a stock holding device / conveyor device 6B, and can be vertically swung about the axis of the lateral transmission case 11 and the lateral transmission. It can swing to the left and right around the axis of the transmission shaft 43, which is a rear vertical shaft that is raised from the case 11. A motor 44 with a worm speed reducer is attached to the main support 12, and a quarter circle gear 46 is attached via a bracket 45.
Is attached, the motor output shaft pinion 47 and the 1/4 circle gear 46 are engaged, and the 1/4 circle gear 4 is rotated around the lateral axis Y.
6 is vertically swung, and a drive arm 49 capable of swinging integrally with the 1/4 circular gear 46 at the Y position of the lateral axis is provided with a tip end locking transfer device 6 as a support frame via the connecting rod 48.
The supply / conveyance device 6 is connected to the A case 56 and is configured to be vertically swingable. On the other hand, as shown in FIG. 1, a pair of upper and lower contact-type sensors are provided on a suspension frame 50 that is provided around the upper part of the transport path to suspend and support the sandwiching rails for the stock holding and transport device 6B. It is configured as a culm length sensor 51 for a transported grain culm sent by the supply / conveyance device 6. In other words, the feeding and conveying device 6 is swung up and down so that the tip of the transported grain culm passes just above and below the intermediate position of the two-contact type sensor, and the holding position of the stock-holding and transporting device 6B is fixed at a fixed position from the tip according to the long and short culms. In addition, the processing depth can be controlled so that the feeding length to the threshing apparatus 5 becomes the set length. Next, the horizontal swing structure of the feeding and conveying device 6 will be described. The vertical transmission case 52 is fixed to the horizontal transmission case 11 in order to support the transmission shaft 43 as the swinging fulcrum shaft for the supply and conveyance device, and the transmission shaft 4 is also attached.
3. A drive sprocket 53 for holding a carrying device for holding a stocker and a drive sprocket 54 for a tip-end carrying device are fitted to the upper and lower intermediate positions of 3 so as to be integrally rotatable. The upper half of the vertical transmission case 52 is provided with a wall surface only on the rear side of the transmission shaft 43 for the feeding and conveying device. The frame 55 is supported by bearings on the transmission shaft 43 for the feeding and conveying device. The tip locking transporting device case 56 and the stock holding device transporting device case 57 are attached to the rotating frame 55, and both cases 56, 57 are connected by an intermediate support frame (not shown), Locking transport device 6A
And the stock-holding / conveying device 6B are integrally rotatable. On the other hand, as shown in FIG. 4 and FIG. 5, the raising device 2 is configured to laterally slide integrally with the left and right support frames 25, 25.
A vertical support shaft 61 in which the raising transmission cases 59, 59 are raised to the left and right, and the right engaging pawl-carrying belt 4B and the right packer 4A are rotatably fitted.
It is raised rightward through a horizontal rod 68 and is suspended and supported by a transmission case 59. The right packer 4A is rotationally driven by constant engagement with the left packer 4A, and also supplies a rotational driving force to a driving pulley with a locking claw 4B that is interlockingly connected to the right packer 4A through a connecting cylindrical case 63. ing. The cutting pretreatment mechanism 17 and the feeding and conveying device 6
The connection mechanism 60 that links the and will be described. As shown in FIGS. 5 and 6, the connecting mechanism 60 includes an engaging rod 65, which will be described later, a swinging arm 67 that swings up and down and right and left integrally with the supply / conveyance device 6, and an engaging rod 65 and a swinging member. It includes a relay rod 69 that connects the moving arm 67. The engaging rod 6
5 is formed in a curved shape so as to be positioned on an arc line centering on the rear lateral support shaft 13 of the supply / conveyance device 6, and its upper end is raised to the right and fixed by welding to a bracket 64 extending from the transmission case 59. Conveyor belt 4 with right locking claw at the lower end
It is attached and formed so as to be engaged with the protrusion of the upper cover 66 of B. The swing arm 67 is fixed to the rotating frame 55 via the bracket 42, and a boss 71 for sliding is fixed to the tip of the swing arm 67. One end of the relay rod 69 is fitted onto the engaging rod 65 to form a moving boss 69a that slides in the axial direction of the engaging rod, and a rod portion that extends rearward from the moving boss 69a. 69b is slidably attached to the sliding boss 71 in the axial direction of the rod portion 69b. Further, since the moving rod boss 69a at one end of the relay rod 69 is externally fitted so as to be swingable left and right around the axis of the engaging rod 65, as shown in FIG. Conveyance grain culm guide body 4 that has scraped part 6a and extended from conveyance device 4
From the split state, which is positioned along the line 1,
When the blade is moved laterally to the left to take a cutting style, the sliding rod 69 is rotated to the right around the axis of the engaging rod, and the lateral movement amount 1 of the starting end portion 6a of the feeding and conveying device 6 is before cutting. Processing mechanism 1
It becomes smaller than the lateral movement amount L of 7, and the conveyed grain culm guide body 41
There is little change in position. Then, the transportation grain culm guide body of the scraping transporting device 4 is transported to the end side transporting route of the scraping transporting device 4 and the starting end side transporting of the supply transporting device 6 over the lateral movement range of the cutting pretreatment mechanism 17. The conveyance direction end side of the conveyance grain stem guide body 41 and the conveyance of the supply conveyance device 6 that constitute the scraping conveyance path of the scraping conveyance device 4 so that the path and the front and rear overlapped states are maintained. The mutual relational position with the starting end side position is set. As described above, the connecting mechanism 60 such as the sliding rod 69 is moved by the lateral movement amount l of the feed conveying device starting end portion 6a relative to the lateral movement amount L of the cutting pretreatment mechanism 17 due to the swing of the feeding conveying device 6. The mechanism is to set small. On the other hand, the upright guide 73 for the locking claw 72 in the tip locking mechanism 6A that swings left and right around the rear fulcrum shaft 43 will be described. The locking claw 72 that can be undulated is attached to the link of the rotation chain 74 in the working posture that locks the transport grain culm and the non-working posture that retracts into the tip locking transport device case 56, and
The standing guide 73 is provided on the case 56. The upright guide 73 corresponds to the transport path for transporting the grain culms in an upright posture while retaining the culm retaining transport device case 56.
The linear first guide 73A attached to the upper end and the semi-circular second guide 73 arranged around the rear fulcrum shaft 43 in order to switch the locking claw 72 in the upright acting posture to the fall-back posture.
It consists of B and. Then, in this supply / conveyance device 6, the stock carrier holding / conveying device 6 approaching the threshing feed chain 39.
6A is installed in a direction away from the threshing feed chain 38 with respect to B, so that the conveyor culms are gradually laid sideways by both 6A and 6B, and the conveyor corn placed in this sideways attitude is laid down. It is the second guide 73B that changes the tip end of the culm to the center side of the traveling machine body 9 and sets the locking release timing of the locking claw 72. The second guide 73B is the vertical transmission case 52. The upper end of each is formed in a semi-circular shape, and the upper end of the semi-circular shape is formed by the tip end locking transport device case 56.
The one inserted into the case 56 through the side punched hole 56a is also used, and there is no change in posture with respect to the rear fulcrum shaft 43.
In addition, as shown in FIG. 4, avoiding the point that the weeds and the like are accumulated on the screw shaft 28 and the first sliding frame 23 that laterally slide the cutting pretreatment mechanism 17 and cause malfunction. Therefore, a cover 70 that covers the entire pre-mowing treatment mechanism 17 is provided. [Other Embodiments] As the second guide 73B, a dedicated one may be separately provided. In the claims, reference numerals are provided for convenience of comparison with the drawings, but the present invention is not limited to the configuration shown in the attached drawings.

BRIEF DESCRIPTION OF THE DRAWINGS [FIG. 1] Overall side view [FIG. 2] Cross-sectional plan view showing lateral movement structure of mowing pretreatment mechanism [FIG. 3] Vertical side view showing lateral movement structure of mowing pretreatment mechanism [FIG. 4] A front view showing the lateral movement structure of the pre-mowing treatment mechanism. [FIG. 5] A side view of the feeding and conveying device, which shows the left-right swing structure and the vertical swing structure. [FIG. FIG. 7 is a plan view showing the left / right swing of the supply / conveyance device interlocked with it. FIG. 7 is a plan view showing a guide of the tip conveying device. FIG. 8 is a plan view showing a connecting portion between the first guide and the second guide. 4 Scraping / conveying device 5 Threshing device 6 Supply / conveying device 9 Traveling machine body 17 Mowing pretreatment mechanism 41 Conveying grain culm guide body 60 Coupling mechanism

Claims (1)

(57) [Claims] A main support in which a cutting pretreatment mechanism (17) for cutting grain culms is mounted on a traveling machine body (9) side equipped with a threshing device (5).
(12) Supports laterally movable with respect to (12) ,
The feeding / transporting device (6) is provided for feeding the grain culm cut by the pre-mowing treatment mechanism (17) to the rear threshing device (5), and the feeding and transporting device (6) is used for the backward transportation end.
Side is used as a swing fulcrum and the start end side is moved vertically and horizontally.
The cutting pretreatment mechanism (17) and the supply carrier.
The feeding device (6), the feeding and conveying device (6) before and after the starting end
Allows position changes to allow left and right and up and down movement
The scratches that are interlockingly connected to each other through the connecting mechanism (60) and are provided on the stocker side of the pre-mowing treatment mechanism (17).
Terminal side conveyance path of the feeding conveyance device (4) and the above-mentioned supply conveyance
The start side transport path of the device (6) overlaps before and after the transport direction.
Left and right movement of the pre-mowing treatment mechanism (17)
Despite the above, the scraping and conveying device is maintained.
(4) Conveying grain culm guide body that constitutes the scraping conveying route
(41) of the feeding direction terminal side and the feeding and conveying device (6)
A combine pre-mowing treatment device in which the position relative to the position at the start side of conveyance is set.